welded square pipes 1. Standard: ASTM/ASME A213, A269, A270 2. Product Specification: OD6-530mm, WT 08-30mm, Length 3mm-14mm ... of our export goods is the followings. 1. Standard: ASTM/ASME A213, A269, A270 JISG3463, JIS3446, JIS3448, JIS3459 Din17456, Din17458 and ... so on. 2. Product Specification: OD6-530mm, WT 08-30mm, Length 3mm-14mm ...